Interestingly, Google, which was perceived as losing share
because of search gimmicks employed by Microsoft and Yahoo, lost
share even with the new methodology.

And that's the key message in the July results--the same message
that has been delivered for the past year: The Google Market
Share Express has come to a screeching halt.

Two years ago, many people expected Google to march right on up
to 90% search share--and the stock price reflected this happy
consensus. Now, however, it appears that Google will be lucky to
cling to its mid-60% share.

Meanwhile, Yahoo clawed back half a point to 17% share (still
well down from a year ago and close to the lowest in the
company's history). And the Microsoft Bing train stalled
out at 11%.

Here's JP Morgan's Imran Khan with the call:

ComScore released July 2010 core search and explicit core search
volume and market share data for the US. Explicit Core Search is
a new metric and is limited to searches that have explicit search
intent, which is defined as user engagement with a search service
with the intent to retrieve search results. Effectively, this
metric will exclude Innovative Searches, which are contextual
shortcuts (a.k.a. hovers) and slideshows (mentioned in the last
two months’ qSearch release notes). Our monthly reports will now focus
on the explicit core search metric as we see this being most
relevant to monetized searches.We note that this
is only one data point and is not necessarily predictive of 3Q
performance. Following are the data highlights:

According to the data, total US explicit core
search volume increased 15.1% Y/Y in July, an acceleration
from 10.8% growth in June. The July level was also
above 2Q’s 7% growth.

Google domestic explicit core search market
share was 65.8% in July, down slightly from 66.2% in
June. Google domestic explicit core search volume
growth of 16.9% Y/Y in July was an acceleration from June’s
12.7% growth and 2Q’s 9.1% growth.